Any experience using Mage.php from Magento inside Lumen?

Magentos "Mage" class seems to be in the global namespace and your are in the App\Http\Controllers namespace. You need to at least prefix the call with an backslash to tell php to look in the global namespace:

\Mage::app();

You should read about namespaces in the php documentation.

Cheers.

Thank you, I found another way to do this, but will try this. Thank you again

@elfeffe any update on how you managed to get this to work? I'm trying out something similar and haven't had any luck yet

What solution you found?

We used

use \Mage;


 /**
     * Create a new instance.
     *
     */
    public function __construct()
    {
            require_once(env('MAGENTO_PATH'));
            Mage::app();
       
    }